题目内容

【题目】__________ no point in beating around the bush. Let's __________.

A. It's; come straight to the point

B. There's; come straight to the point

C. This is; get to the point

D. That is; reach the point

【答案】B

【解析】句意:绕来绕去是没有意义的。我们开门见山吧。There is no point in doing sth 做某事是没有意义的。come straight to the point开门见山。

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【题目】While astronauts in space get to do many exciting things, they miss out on ordinary things that we all take for granted—being able to walk on firm ground, hanging out with family and digging into a slice of hot steaming pizza. Though not much can be done about the first two things, there may soon be a solution to the third one, thanks to this cool 3-D pizza printer!

About a year ago, NASA offered $125 ,000 to Anjan Contractor, a 3-D technology expert, to build a device (设备) that would allow astronauts to make pizza on demand. The mechanical engineer promised that his invention would produce pies in large quantities that looked, tasted and even smelled like pizza made in common ovens.

Late last year, the engineer presented a video of his first prototype (原型) that begins by creating a single slice of dough (面团) that is cooked and printed at the same time. Then comes the tomato “sauce” a mix of tomato powder, oil and water and finally, a protein slice that resembles cheese. While the video doesn’t show the baking process, the inventor says that once the pizza is printed, it can be ready to be consumed in 7 seconds.

While the pie in the video looks delicious enough to attract any pizza lover, Anjan Contractor is far from ready for astronauts. That’s because he still has to find a solution to make the food container in the printer last for 30 years. Though that may sound unrealistic, actually it is not.

Anjan Contractor believes that the only way that is possible is that the water is removed from all the ingredients (料) and then they are reduced to the powder form. This, as you can imagine, will not be so easy. But, while the printer may not be ready for space, it certainly looks ready enough for people on earth. Hopefully, NASA and Contractor will consider selling it to those not fortunate enough to go to Mars!

1 Why does the author mention the things that astronauts in space cannot do?

A. To ask us not to take common things for granted.

B. To show they live a difficult life there.

C. To show their life is boring in space.

D. To introduce the topic of the text.

2NASA offered $ 125, 000 to Anjan Contractor mainly to _______.

A. create some new type of 3-D printer

B. attract more companies to work for NASA

C. help astronauts in space enjoy fresh pizza one day

D. produce pizza in large quantities to earn great profits

3The biggest challenge that Anjan Contractor is faced with now is probably that _______.

A. he has no money left to go on with his research

B. the pizza doesn’t seem appetizing to pizza lovers

C. he has no way to make pizza that can last for thirty years

D. he cannot make the food container last for decades

4 What’s the best title of the passage?

A. NASA is trying its best to help astronauts eat better

B. Astronauts may soon be able to enjoy steaming hot pizza

C. NASA is working on making pizza for common people

D. A 3-D pizza printer has been used to make pizza

【题目】Chimpanzees, long considered reluctant to share, apparently can display selfless tendencies, revealing one more key way our closest living relatives are like humans, scientists findThese findings could shed light on the evolution ofaltruismin humans

Previously, a belief was widely held that human altruism evolved only after humans split from their ape cousins about 6 million years agoIn recent years, however, research has revealed just how much chimpanzees have in common with usThey can hunt with spears, play with dolls and mourn their partners’ death.

"Most of the earlier studies had presented the apes with a complex implement that helped them deliver food to themselves or others, often so complicated that the experiments tested tool skills rather than social tendencies," De Waal told Live Science"Ours is the first study that uses no such implement at all."

In addition to using complex food-delivery systems, past experiments often placed the chimpanzees so far apart that they might not have realized how their actions benefited othersIn these new, simplified experiments, two apes were housed next to each other with a screen through which they could see each otherThen, one chimpanzee had to choose between two differently colored tokens (币) from a bin, one of which represented a pro-social (亲社会的) option, the other a selfish optionThe pro-social option would cause both chimpanzees to receive a piece of banana wrapped in paperThe selfish option only rewarded the ape who made the choice.

In a study with seven adult female chimps placed into various pairs, the scientists found all the apes showed a definite preference for the pro-social option"For me, the most important finding is that like us, chimpanzees take into account the needs and wishes of others," researcher Victoria Horner, said.

The chimpanzees behaved especially altruistically toward partners who either patiently waited or gently reminded them that they were there by drawing attention to themselvesThey were less likely to reward partners who pressured through making a fuss, begging persistently or spitting water at themThis is opposite to a long-standing view that the chimpanzees only share food under pressure.

1The word " altruism" paragraph 1is closest in meaning to ______.

A. selfishness B. selflessness

C. willingness D. reluctance

2Recent researches are performed with less complicated implements mainly to ______.

A. show that chimps are only good at using implements

B. see whether chimps are willing to share food with others

C. find out if chimps are likely to reward partners

D. test chimps’ social tendencies instead of tool skills

3Which of the following might be the best title of the passage?

A. Evolution History of Altruism in Humans

B. Similarities between Chimps and Mankind

C. Chimps Do Show Selfless Behavior

D. Chimps Only Share Food under Pressure

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